What is CVE-2026-27955?

CVE-2026-27955 is a medium-severity vulnerability in Coollabsio Coolify, classified under OS Command Injection. CVSS score: 6.6/10. Published 2026-06-30.

How severe is CVE-2026-27955?

Medium severity. CVSS v3 base score is 6.6 out of 10.

RCE in Coollabsio Coolify

CVE-2026-27955

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, the executeInDocker() helper wraps commands in bash -c '{$command}' without escaping single quotes. User-controlle…

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L.

Affected products

Coollabsio Coolify — versions < 4.0.0-beta.464

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-27955?: CVE-2026-27955 is a medium-severity vulnerability in Coollabsio Coolify, classified under OS Command Injection. CVSS score: 6.6/10. Published 2026-06-30.
How severe is CVE-2026-27955?: Medium severity. CVSS v3 base score is 6.6 out of 10.